Ready-to-use paraquat sensor using a graphene-screen printed electrode modified with a molecularly imprinted polymer coating on a platinum core
Kanpitcha Somnet, Suphatsorn Thimoonnee, Chanpen Karuwan, Wichayaporn Kamsong, Adisorn Tuantranont, Maliwan Amatatongchai
Abstract
= 0.999), with a lower detection limit of 0.02 μM (at -0.71 V). The compact imprinted sensor gave a highly sensitive and selective signal toward PQ. The ready-to-use MIP sensor can provide an alternative approach to the determination of paraquat residue on vegetables and fruits for food safety applications.
Topics & Concepts
Molecularly imprinted polymerAzobisisobutyronitrileEthylene glycol dimethacrylateElectrochemical gas sensorLinear sweep voltammetryDetection limitCyclic voltammetryMaterials sciencePlatinum nanoparticlesMethacrylic acidChemical engineeringChemistryNuclear chemistryElectrodePolymerMonomerElectrochemistryChromatographyOrganic chemistrySelectivityComposite materialEngineeringCatalysisPhysical chemistryParaquat toxicity studies and treatmentsElectrochemical Analysis and ApplicationsElectrochemical sensors and biosensors